A spherical alumina carrier forming, granulation, and rounding device

Abstract

This invention relates to the field of alumina carrier forming apparatus, specifically a spherical alumina carrier forming, granulation, and rounding device. The device includes a frame, a rounding disc rotatably mounted on the frame, and a support frame fixedly installed on the frame. The support frame is equipped with a detection mechanism for online sampling and roundness detection of the material via a moving component. This invention employs several sampling tubes with progressively shorter lengths and gradually decreasing heights, enabling automatic and simultaneous extraction of material from different radial positions and depths on the rounding disc. This diversifies sampling locations and times sampling. After sampling, the material is transported granules one by one into a pipeline assembly, and an attitude adjustment component blows the material upwards to an industrial camera, simultaneously driving the material to continuously and randomly roll. Continuous imaging by the industrial camera extracts multi-angle morphological features of the material, ensuring the granulation quality of the spherical alumina carrier while avoiding the batch defect problems caused by the lag in traditional offline detection results.

Description

Technical Field

[0001] This invention relates to the field of alumina carrier forming apparatus, specifically a spherical alumina carrier forming, granulation, and spherical polishing apparatus. Background Technology

[0002] Spherical alumina support is a porous material made by processing alumina into regular spheres. It serves as a substrate for loading active components and is widely used in petrochemical fields such as catalytic hydrogenation, dehydrogenation, desulfurization, reforming, and cracking. The sphericity of the support directly affects the packing density, flowability, and pressure drop distribution of the reaction bed. Therefore, controlling the roundness of the product is a key quality indicator in the production process.

[0003] The main methods for preparing spherical alumina carriers include rolling spheroidization, hot oil column forming, oil-ammonia column forming, and spray dispersion spheroidization. Among them, rolling spheroidization (also known as granulation and spheroidization) is the most widely used due to its simple process and high production efficiency. Its basic principle is to add an appropriate amount of powder and binder into a rotating spheroid. During the rolling process, the powder particles form a mother ball due to capillary force and liquid bridge action. Then, under the continuous action of friction and impact force on the surface of the spheroid, it is continuously compacted and shaped, and finally alumina spheres with good sphericity and high strength are obtained.

[0004] During the granulation and rounding process, the roundness of the particles gradually increases with the increase of the rounding time. Insufficient rounding time will result in poor sphericity and poor flowability of the product; while excessive rounding may cause excessive wear of the particles, smaller particle size, or even breakage. Therefore, timely detection of the roundness of the carrier during the granulation and rounding process is of great significance for ensuring the consistency of product quality and optimizing the rounding process parameters.

[0005] Currently, the roundness detection during the granulation and spherical polishing process of spherical alumina carriers mainly adopts offline detection methods. Operators periodically take samples from the polishing machine and observe the particles visually or use an industrial camera to collect two-dimensional projection images of the particles. Then, image processing software is used to analyze the particle outline and calculate morphological parameters such as roundness and sphericity. However, this detection method still has many shortcomings in practical applications.

[0006] First, existing technologies use manual sampling, which involves significant randomness in sampling location and time, making it difficult to ensure that the samples accurately reflect the overall roundness distribution of the material within the disc, resulting in insufficient sample representativeness. Furthermore, the detection process is highly dependent on manual operation, leading to low efficiency and failing to meet the real-time quality control requirements of continuous production.

[0007] Secondly, existing image detection methods typically involve placing particles on a static stage for imaging. Since the orientation of particles on the stage is random, in order to obtain reliable morphology data, it is often necessary to adjust the orientation of the same particle multiple times and take separate pictures, which is cumbersome and further reduces detection efficiency.

[0008] Furthermore, the cycle from sampling to completing the test is relatively long, and the test results lag significantly behind the production process. They cannot be fed back to the control system in real time to guide the online adjustment of key process parameters such as the rotation speed, tilt angle, or processing time of the polishing disc. When the roundness of the product is found to be unqualified, a large amount of material often needs to be reworked or scrapped, resulting in resource waste and economic losses.

[0009] In summary, there is an urgent need in this field for a spherical alumina carrier roundness detection device that can achieve online sampling, automatic detection, and rapid feedback during the granulation and rounding process, in order to overcome the shortcomings of existing offline detection methods, such as poor sample representativeness, low detection efficiency, and delayed results. Summary of the Invention

[0010] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a spherical alumina carrier forming, granulation and rounding device, including a frame, a rounding disc rotatably arranged on the frame, a support frame fixedly installed on the frame, and a detection mechanism for online sampling and roundness detection of materials arranged on the support frame through a moving component.

[0011] The detection mechanism includes several sampling tubes, each with a progressively shorter length and lower height, which allows for sampling of materials at different positions and depths on the throwing disc. The left end of the sampling tube is fixedly connected to a pipe assembly via a connecting square tube. Both the connecting square tube and the pipe assembly are equipped with an attitude adjustment component that uses wind power to blow the material up.

[0012] The connecting square tube is equipped with a material conveying component for feeding material one piece at a time, and the moving component is equipped with several industrial cameras for photographing the material inside the corresponding pipe component.

[0013] When the testing agency conducts testing, the sampling tube extracts the material and transports it piece by piece to the pipeline assembly through the material conveying component. The attitude adjustment component blows the material upward to the industrial camera and drives the material to roll randomly continuously. The morphological characteristics of the material are extracted by continuous shooting by the industrial camera.

[0014] Preferably, the moving component includes a connecting frame that is slidably mounted on the support frame, the connecting frame being fixedly connected to the connecting square tube and the industrial camera, and a hydraulic cylinder for driving the connecting frame being fixedly mounted on the support frame.

[0015] Preferably, both the sampling tube and the connecting square tube are inclined with the right side higher than the left side, and the right end of the sampling tube is the feed inlet.

[0016] Preferably, the pipe assembly includes a bent pipe that is sealed and fixedly connected to the left end of the connecting square tube, an observation tube that is fixedly connected to the upper end of the bent pipe, and an inner diameter pipe that is detachably connected inside the observation tube.

[0017] Preferably, the middle part and the inner diameter tube of the observation tube are both made of transparent material, and the upper flange of the observation tube is connected to the discharge pipe.

[0018] Preferably, the attitude adjustment component includes a fan fixedly installed on the upper side of the connecting square tube, an electric cylinder fixedly installed on the upper side of the discharge pipe, and an inclined plate fixedly installed on the telescopic section of the electric cylinder.

[0019] Preferably, the electric cylinder drives the inclined plate to slide up and down inside the observation tube, the upper end of the inner diameter tube is an inclined surface that matches the inclined plate, and the outer diameter of the inclined plate fits the inner diameter of the discharge tube.

[0020] Preferably, the material conveying assembly includes a detachable guide block inserted inside the connecting square tube, the guide block having a funnel-shaped channel and the left end of the guide block having an inclined structure.

[0021] Preferably, a conveying column is rotatably connected to the middle of the guide block, and a groove matching the size of the funnel-shaped channel is opened on the cylindrical surface of the conveying column.

[0022] Preferably, a brushless motor is mounted on the upper side of the connecting square tube by screws, and the brushless motor is used to drive the material conveying column to rotate.

[0023] The beneficial effects of this invention are as follows: First, this invention uses several sampling tubes with progressively shorter lengths and gradually decreasing heights, which can automatically and synchronously extract materials at different radial positions and depths on the disc, making the sampling positions diversified and the sampling timed, thereby improving the representativeness of the samples. After sampling, the materials are transported one by one to the pipeline assembly, and the attitude adjustment component blows the materials upward to the industrial camera, while driving the materials to continuously and randomly roll. Through continuous shooting by the industrial camera, multi-angle morphological features of the materials are extracted, thereby realizing online sampling roundness detection. It can detect roundness abnormalities in a timely manner and provide feedback for adjustment, which not only ensures the granulation quality of spherical alumina carriers, but also avoids the problem of batch waste caused by the lag of traditional offline detection results.

[0024] Second, this invention uses a funnel-shaped channel on the guide block inside the connecting square cylinder to arrange the sampled spherical alumina carriers one by one. Under the action of gravity, the carriers roll sequentially into the groove of the conveying column. Then, the conveying column is driven by a brushless motor to rotate half a turn, so that the material on the right side of the connecting square cylinder can be smoothly conveyed to the left side of the connecting square cylinder one by one. This realizes automatic single-particle feeding of materials, ensuring that only one carrier enters the detection station at a time, thereby avoiding particle stacking and interference with the shooting, and significantly improving the accuracy and reliability of roundness detection.

[0025] Third, this invention employs an inclined plate that can move up and down inside the observation tube. During testing, an electric cylinder drives the inclined plate downward and abuts against the upper end of the inner diameter tube. The wind generated by the fan blows the spherical alumina carrier to be tested upward and abuts against the lower side of the inclined plate, causing it to roll randomly continuously. This allows the industrial camera to capture sufficient and diverse posture images from the transparent part of the observation tube. After testing, the electric cylinder drives the inclined plate upward to the discharge tube. Under the guidance of the inclined surface of the inclined plate, the carrier slides along the discharge tube and returns to the throwing disc, realizing the automatic reuse of the material after testing. This simplifies the operation process and avoids material waste.

[0026] Fourth, the present invention employs a detachable guide block inserted inside the connecting square tube and an inner diameter tube detachably connected inside the observation tube. This allows the device to adapt to the particle arrangement, conveying, and blowing and rolling requirements of carriers with different particle sizes when granulating and rounding spherical alumina carriers with different particle size requirements. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the support frame, sampling tube, connecting square tube and observation tube in this invention;

[0030] Figure 3 This is a schematic diagram of the structure of the fan, electric cylinder, industrial camera and discharge pipe in this invention;

[0031] Figure 4 This is a partial cross-sectional view of the connection between the square tube, the blower, the observation tube, and the discharge tube in this invention;

[0032] Figure 5 This is a partial cross-sectional view of the material connecting the square tube, the conveying column, the brushless motor, and the guide block in this invention.

[0033] Figure 6 This is a partial cross-sectional view of the observation tube, the inclined plate, and the inner diameter tube in this invention.

[0034] In the diagram: 1. Frame; 2. Throwing disc; 3. Support frame; 4. Detection mechanism; 31. Moving component; 41. Sampling tube; 42. Connecting square tube; 43. Pipe assembly; 44. Attitude adjustment component; 45. Material conveying component; 46. Industrial camera; 311. Connecting frame; 312. Hydraulic cylinder; 431. Bend; 432. Observation tube; 433. Inner diameter tube; 434. Discharge tube; 441. Fan; 442. Electric cylinder; 443. Inclined hole plate; 451. Guide block; 452. Material conveying column; 453. Brushless motor. Detailed Implementation

[0035] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0036] See Figure 1 and Figure 2 A spherical alumina carrier forming, granulation, and rounding device includes a frame 1, a rounding disc 2 rotatably mounted on the frame 1, a support frame 3 fixedly mounted on the frame 1, and a detection mechanism 4 for online sampling and roundness detection of materials mounted on the support frame 3 via a moving component 31.

[0037] In this embodiment, a synchronous motor is fixedly installed on the lower side of the frame 1. The output shaft of the synchronous motor is fixedly connected to the polishing disc 2. When the spherical alumina carrier raw material is shaped and granulated, the operator adds the raw material and binder to the polishing disc 2, and then starts the synchronous motor to drive the polishing disc 2 to rotate. During the rolling process, the powder particles form mother balls due to capillary force and liquid bridge action. Then, under the continuous action of friction and impact force on the surface of the polishing disc 2, they are continuously compacted and shaped, and finally alumina spheres with good sphericity and high strength are obtained.

[0038] During the rotation of the polishing disc 2, the moving component 31 moves the detection mechanism 4 to the right at regular intervals, enabling the detection mechanism 4 to periodically sample and detect materials at different positions and depths in the polishing disc 2. This achieves online sampling and roundness detection of the materials, and uploads the data of each roundness detection to the control machine. The control machine then calculates the roundness characteristics of the spherical alumina carrier using existing feature algorithms, and then adjusts the forming and granulation process parameters of the spherical alumina carrier in real time based on the roundness characteristic data, such as the rotation speed of the polishing disc 2, the amount of binder added, and the subsequent rolling time of the spherical alumina carrier.

[0039] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The testing mechanism 4 includes several sampling tubes 41, each with a progressively shorter length and lower height, to sample materials at different positions and depths on the throwing disc 2. The left end of the sampling tube 41 is fixedly connected to a pipe assembly 43 via a connecting square tube 42. The connecting square tube 42 and the pipe assembly 43 are both equipped with an attitude adjustment component 44 that blows the material up by wind. The connecting square tube 42 is equipped with a material conveying component 45 for feeding material piece by piece. The moving component 31 is equipped with several industrial cameras 46 for photographing the material inside the corresponding pipe assembly 43.

[0040] When testing the spherical alumina carrier, several sampling tubes 41 are inserted into the material inside the throwing disc 2, so that materials at different positions and depths roll into the corresponding sampling tubes 41. Then, these sampled materials roll to the left under their own gravity to the corresponding connecting cylinder 42. After that, the material on the right side of the connecting cylinder 42 is smoothly conveyed to the left side of the connecting cylinder 42 one by one by the material conveying component 45, realizing automatic single-particle feeding of materials.

[0041] Then, the attitude adjustment component 44 blows a piece of material to be tested into the pipe assembly 43 by wind power, and moves the material to be tested to the corresponding position of the industrial camera 46. The attitude adjustment component 44 drives the material to be tested to roll randomly in the pipe assembly 43. During the rolling process, the industrial camera 46 continuously captures sufficient and diverse posture images of the material to be tested, thereby obtaining the roundness feature data of the material. Then, the attitude adjustment component 44 rolls the material after the test is completed back into the throwing disc 2 through the pipe assembly 43, realizing the automatic reuse of the material after the test.

[0042] To enable sampling by moving the sampling tube 41 into the material within the throwing disc 2, the present invention designs the following structure: (See attached diagram) Figure 1 , Figure 2 and Figure 3 The moving component 31 includes a connecting frame 311 that is slidably mounted on the support frame 3. The connecting frame 311 is fixedly connected to the connecting square tube 42 and the industrial camera 46. A hydraulic cylinder 312 that drives the connecting frame 311 is fixedly mounted on the support frame 3.

[0043] During sampling, the extension section of the hydraulic cylinder 312 is extended, causing the hydraulic cylinder 312 to drive the connecting frame 311 to move to the right. This causes the connecting frame 311 to drive the connecting square tube 42 and the industrial camera 46 to move to the right simultaneously, thereby causing the connecting square tube 42 to drive the sampling tube 41 to extend into the material for sampling.

[0044] To achieve leftward rolling of the material in sampling tube 41, the present invention designs the following structure: (See attached diagram) Figure 2 , Figure 4 and Figure 5 Both the sampling tube 41 and the connecting square tube 42 are inclined with the right side higher than the left side. The right end of the sampling tube 41 is the feed inlet. When the material in the throwing disc 2 rolls through the feed inlet of the sampling tube 41 to the sampling tube 41, the material rolls along the sampling tube 41 to the corresponding connecting square tube 42 under its own gravity.

[0045] To achieve the sequential arrangement of materials in the connecting square tube 42, the present invention designs the following structure: (See attached diagram) Figure 4 and Figure 5The material conveying component 45 includes a detachable guide block 451 that is inserted inside the connecting square tube 42. The guide block 451 has a funnel-shaped channel and the left end of the guide block 451 has an inclined structure.

[0046] The material inside the connecting square tube 42 rolls into the funnel-shaped channel of the guide block 451 under the action of gravity. Due to the size limitation of the funnel-shaped channel, only one piece of material can pass through the funnel-shaped channel at a time, thereby realizing the arrangement of materials one by one. When granulating and rounding materials with different particle size requirements, it is only necessary to replace the guide block 451 with the corresponding size funnel-shaped channel to realize the arrangement of materials one by one.

[0047] To achieve automated, single-particle feeding of materials, this invention designs the following structure: (See attached diagram) Figure 3 , Figure 4 and Figure 5 The guide block 451 is rotatably connected to the conveying column 452 in the middle. The conveying column 452 has a groove on its cylindrical surface that matches the size of the funnel-shaped channel. A brushless motor 453 is installed on the upper side of the connecting square tube 42 by screws. The brushless motor 453 is used to drive the conveying column 452 to rotate.

[0048] Material passing through the funnel-shaped channel rolls into the groove of the conveying column 452 under its own gravity. Then, the brushless motor 453 is started to drive the conveying column 452 to rotate half a revolution, so that the conveying column 452 conveys the material in the groove to the left side of the connecting square cylinder 42. After that, the material continues to roll to the left out of the connecting square cylinder 42 under its own gravity, realizing automatic single-particle feeding of material and ensuring that only one carrier enters the testing station at a time.

[0049] To enable the industrial camera 46 to continuously capture images of randomly rolling materials, this invention designs the following structure: (See attached diagram) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The pipe assembly 43 includes a bend 431 that is sealed and fixedly connected to the left end of the connecting square tube 42. An observation tube 432 is fixedly connected to the upper end of the bend 431. An inner diameter tube 433 is detachably connected inside the observation tube 432. Both the middle part of the observation tube 432 and the inner diameter tube 433 are made of transparent material. A discharge pipe 434 is connected to the upper flange of the observation tube 432.

[0050] When the conveying column 452 transports the material in its groove to the left side of the connecting square cylinder 42, the material rolls to the left into the bend 431 under its own gravity. Then, under the blowing of the wind, the material to be tested moves along the bend 431 into the observation tube 432. Subsequently, the material to be tested moves upward into the inner diameter tube 433, causing the material to move to the upper end of the inner diameter tube 433 and roll randomly under the blowing of the wind. This allows the industrial camera 46 to capture sufficient and diverse posture images from the transparent part of the observation tube 432 and the inner diameter tube 433. When granulating and rounding materials with different particle size requirements, it is only necessary to replace the inner diameter tube 433 with the corresponding inner diameter to achieve the upward movement of materials with different particle sizes.

[0051] To achieve position control of the material to be tested, ensuring that the material is located within the inner diameter pipe 433 during the roundness test, and that the material is moved to the discharge pipe 434 after the test, the present invention designs the following structure: (See attached diagram) Figure 1 , Figure 3 , Figure 4 and Figure 6 The attitude adjustment component 44 includes a fan 441 fixedly installed on the upper side of the connecting square tube 42, an electric cylinder 442 fixedly installed on the upper side of the discharge pipe 434, an inclined plate 443 fixedly installed on the telescopic section of the electric cylinder 442, the electric cylinder 442 drives the inclined plate 443 to slide up and down in the observation tube 432, the upper end of the inner diameter tube 433 is an inclined surface that matches the inclined plate 443, and the outer diameter of the inclined plate 443 fits the inner diameter of the discharge pipe 434.

[0052] When testing materials, the electric cylinder 442 controls the inclined hole plate 443 to abut against the upper end of the inner diameter pipe 433. Then, the blower 441 blows the airflow into the connecting square cylinder 42 and causes the airflow to be blown onto the inclined surface structure of the guide block 451. The guide block 451 then guides the airflow into the bend pipe 431, thereby causing the airflow to carry the material to be tested upward to abut against the lower side of the inclined hole plate 443, so that the material to be tested rolls randomly inside the inner diameter pipe 433.

[0053] After the test is completed, the electric cylinder 442 controls the inclined plate 443 to move upward into the discharge pipe 434, so that the material to be tested is pushed by the airflow to move synchronously into the discharge pipe 434. Then, under the guidance of the inclined plate 443, the material rolls back into the throwing disc 2 along the discharge pipe 434.

[0054] In summary, although this invention adds components such as a sampling tube 41, a connecting square tube 42, an industrial camera 46, and an observation tube 432 to the traditional rounding equipment, slightly increasing the initial equipment investment cost, this invention achieves online automated roundness detection and timely feedback to adjust the rounding process parameters by simultaneously extracting materials at different positions and depths, combined with particle-by-particle feeding, driving individual particles to roll randomly, and continuously capturing and extracting multi-angle morphological features. This effectively avoids the drawbacks of traditional offline detection methods, such as poor sample representativeness, low detection efficiency, and delayed results. It significantly reduces the losses from large-scale material rework or scrap due to unqualified roundness, thereby quickly balancing the initial investment and achieving considerable economic benefits. It has good industrial practical value and promising prospects for promotion and application.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A spherical alumina carrier forming, granulation, and spherical polishing device, comprising a frame, a polishing disc rotatably mounted on the frame, and a support frame fixedly mounted on the frame, characterized in that, The support frame is equipped with a detection mechanism for online sampling and roundness detection of materials via a movable component; The detection mechanism includes several sampling tubes, each with a progressively shorter length and a gradually decreasing height, thereby sampling materials at different positions and depths on the throwing disc. The left end of the sampling tube is fixedly connected to a pipe assembly via a connecting square tube. Both the connecting square tube and the pipe assembly are equipped with an attitude adjustment component that blows the material up by wind power. The connecting square tube is equipped with a material conveying component for feeding material one piece at a time, and the moving component is equipped with several industrial cameras for photographing the material inside the corresponding pipe component. When the testing agency conducts testing, the sampling tube extracts the material and transports it piece by piece to the pipeline assembly through the material conveying component. The attitude adjustment component blows the material upward to the industrial camera and drives the material to roll randomly continuously. The morphological characteristics of the material are extracted by continuous shooting by the industrial camera.

2. The spherical alumina carrier forming, granulation, and rounding device according to claim 1, characterized in that, The movable component includes a connecting frame that slides left and right on a support frame. The connecting frame is fixedly connected to the connecting square tube and the industrial camera. A hydraulic cylinder that drives the connecting frame is fixedly installed on the support frame.

3. The spherical alumina carrier forming, granulation, and rounding device according to claim 1, characterized in that, Both the sampling tube and the connecting square tube are tilted with the right side higher than the left, and the right end of the sampling tube is the feed inlet.

4. The spherical alumina carrier forming, granulation, and rounding device according to claim 1, characterized in that, The pipe assembly includes a curved pipe that is sealed and fixedly connected to the left end of the connecting square tube. An observation tube is fixedly connected to the upper end of the curved pipe, and an inner diameter pipe is detachably connected inside the observation tube.

5. The spherical alumina carrier forming, granulating, and rounding device according to claim 4, characterized in that, The middle part and the inner diameter tube of the observation tube are made of transparent material, and the upper flange of the observation tube is connected to the discharge pipe.

6. The spherical alumina carrier forming, granulating, and rounding device according to claim 5, characterized in that, The attitude adjustment component includes a fan fixedly installed on the upper side of the connecting square tube, an electric cylinder fixedly installed on the upper side of the discharge pipe, and an inclined plate fixedly installed on the telescopic section of the electric cylinder.

7. The spherical alumina carrier forming, granulating, and rounding device according to claim 6, characterized in that, The electric cylinder drives the inclined plate to slide up and down inside the observation tube. The upper end of the inner diameter tube is an inclined surface that matches the inclined plate, and the outer diameter of the inclined plate fits the inner diameter of the discharge tube.

8. The spherical alumina carrier forming, granulation, and rounding device according to claim 1, characterized in that, The material conveying assembly includes a detachable guide block inserted inside the connecting square tube. The guide block has a funnel-shaped channel and a sloping structure at its left end.

9. The spherical alumina carrier forming, granulating, and rounding device according to claim 8, characterized in that, The material guide block is rotatably connected to a material conveying column in the middle, and the cylindrical surface of the material conveying column has a groove that matches the size of the funnel-shaped channel.

10. The spherical alumina carrier forming, granulating, and rounding device according to claim 9, characterized in that, A brushless motor is mounted on the upper side of the connecting square tube by screws. The brushless motor is used to drive the material conveying column to rotate.

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